Brake adjustment

Most brakes have the quick release lever and I have found at the 'release' setting, the width is perfect for my Flo wheels. My question is it safe to use like this so it is easy to swap between trainer wheels and Flo wheels or could this be potentially dangerous?

To be 100% honest I'm not sure. I'd recommend contacting the manufacturer of your brake to double check. Sorry I don't have an answer but I don't want to give you the wrong recommendation, specifically since we are talking about brakes.